TEC2604-4 and TEC2604-4+PIR BACnet® MS/TP Networked Multi-Stage Economizer Thermostat
Controllers Installation Instructions
3
8.
Swing the PCB back to the right and carefully snap
it into the locking tabs on the thermostat controller
mounting base.
9.
Remove the screw terminal blocks that are
attached to a disposable adhesive. Figure 4
illustrates the locations of the screw terminal
blocks on the thermostat controller.
Wiring
When an existing thermostat controller is replaced,
remove and label the wires to identify the terminal
functions. When a TEC2604-4 or TEC2604-4+PIR
Thermostat Controller is replaced, simply remove the
old screw terminal blocks and reinsert them onto the
PCB of the replacement thermostat controller.
To wire the thermostat controller:
1.
Strip the ends of each wire 1/4 in. (6 mm) and
connect them to the appropriate screw terminals as
indicated in Figure 5.
Note:
If multiple wires are inserted into the screw
terminals, make sure to properly twist the wires
together prior to inserting them into the screw
terminals.
Note:
For more details on wiring the
MS/TP Communications Bus, refer to the
MS/TP Communications Bus Technical Bulletin
(LIT-12011034).
2.
Carefully push any excess wire back into the wall.
Note:
Seal the hole in the wall with fireproof
material to prevent drafts from affecting the
ambient temperature readings.
3.
Reinsert the screw terminal blocks onto the PCB.
Figure 3: Securing the Thermostat Controller
Mounting Base to the Wall
F
IG
:m
n
tn
g
_
b
s
Figure 4: Removing the Screw Terminal Blocks
F
IG
:t
rm
n
l_
b
lc
k
s
IMPORTANT:
Because some of the objects may
not directly correlate to a previous version
(TEC26xx-2), you must rediscover all point objects
for the TEC2604-4 or TEC2604-4+PIR version. For
detailed information on this mapping, refer to the
TEC BACnet® MS/TP Network Series Thermostat
Controllers Technical Bulletin (LIT-12011592)
.
!
CAUTION: Risk of Electric Shock.
Disconnect the power supply before
making electrical connections to avoid
electric shock.
!
CAUTION: Risk of Property Damage.
Do not apply power to the system before
checking all wiring connections. Short
circuited or improperly connected wires
may result in permanent damage to the
equipment.
IMPORTANT:
Make all wiring connections in
accordance with local, national, and regional
regulations. Do not exceed the electrical ratings of
the TEC2604-4 or TEC2604-4+PIR Thermostat
Controller.
